int main() {
  int * p1;
  int * p2;
  int * p3;

  p1 = 0x00002004;
  *p1 = 4;

  p2 = 0x00002008;
  *p2 = 1;
  p2 = 0x0000200c;
  *p2 = 2;
  p2 = 0x00002010;
  *p2 = 3;
  p2 = 0x00002014;
  *p2 = 4;

  p3 = 0x00002000;
  *p3 = 1;
  
  return 0;
}

